Purge valve solenoid or egr valve?
Hi, i'm new here, my problem is an 83 gmc 1/2 ton pickup. It had a 305 or 307 when he bought it new, he can't remember, he had it replaced about 92 with a 350, on top of the alternator is a bracket with a black plastic box about 1.5" long by 1" tall by 1" wide, 1 vacuum goes to the carb. 1 vacuum goes to the charcoal cannister, and 1 wire goes to what he calls a converter valve? it has A2103 on top of it. Does anyone know what it'* for. Thanks sooo much for your help. Sadi.